[blackdog]

Hmmmmm...I'm not very informed on matters of interplanetary atmospheric physics and content, but what you say makes some sense. The place is rich in methane from what I understand. Is methane hydroscopic or hydrophobic? The same with it's other dominating chemical content. The reason I ask, is that is it possible that the water was repelled or pushed out of the atmosphere by ionic charge, or was pulled beneath the surface by something hydroscopic?

[Frank_Discussion]

Good questions to which I don't have answers. It could be a whole bunch of bound hydrates, I guess, but I'm not a chemist/geochemist.